What a great pal you are bednobs. As a vegetarian, if I were in her position, I'd love it if someone were to cook me a selection from the following:
Shepherdess pie - fry the onions/celery/carrot as you normally would and add half a tin of green lentils, some tinned toms, stir in some tom puree and some tasty stock. Add potatoes as normal and freeze.
Vegetable lasagne:
http://www.veggie-recipe.com/recipes/lentil-lasagne.html
Leek and Potato bake: Leeks, potatoes in a cheese sauce
Cauliflower and butter bean bake: Cauli cheese with a few butter beans thrown in
Ratatouile: Which I could have on jacket potatoes one day and on pasta another.
Vegeable curry: which I could have with microwave rice
Three bean chilli: Again have with microwave rice or on a spud.
http://www.everyday-vegetarian-recipes.com/vegetarian-chilli.html
Maybe go light on the beans if she's in bed and replace half the amount with some green beans or mushrooms instead.